Open 129 File

Whether you're a novice computer user or a seasoned tech professional, understanding file extensions is key to managing your computer's files effectively. The extension is a three or four-letter identifier found at the end of a file name - it tells both the operating system and users what kind of information the file contains and what program should be used to open it. This article details different file extensions and their uses.

.jpg and .png (Image Files)

The two commonly used file extensions for images are JPEG (.jpg) and PNG (.png). JPEG is an image format characterized by its ability to create smaller files and it is most often used by photographers. PNG is used for images with a transparent background as it preserves transparency. You can open these file types with software such as Adobe Photoshop, or even preview it using your computer's default image viewer.

.doc and .docx (Microsoft Word Files)

These are file extensions for Microsoft Word documents. .doc is used by versions of Word prior to Word 2007, while .docx is used by later versions. These files can be opened using Microsoft Word, or can be converted to .pdf files for easier sharing.

.csv (Comma Separated Value Files)

This format is used for data storage where each piece of data is separated by a comma. This is mostly used in programs that handle large amounts of data such as Excel and can be opened using Microsoft Excel.

.mp3 (Audio Files)

MP3 is the most common digital audio format. The file extension was invented by the Moving Picture Experts Group and made popular thanks to the internet and digital music revolution. MP3 files can be played by many types of software including iTunes, VLC and others.

129 File Important Information

The aforementioned are just a few examples from a sea of available file extensions. Learning each may seem like a daunting task, but fear not. Each program you use will often default to the file extension of its choice and it is rare you'll need to change it. If you do, a quick search online typically provides all the information necessary. Remember, it's better to keep the file in its original format to prevent any possible loss of data or formatting issues.